Nutates equatorial rectangular coordinates from mean equator and equinox of epoch to true equator and equinox of epoch.

Namespace: ASCOM.Astrometry.NOVAS
Assembly: ASCOM.Astrometry (in ASCOM.Astrometry.dll) Version: 6.0.0.0 (6.1.1.2619)

Syntax

C#
public short Nutate(
	double tjd,
	NutationDirection fn,
	double[] pos,
	ref double[] pos2
)
Visual Basic
Public Function Nutate ( _
	tjd As Double, _
	fn As NutationDirection, _
	pos As Double(), _
	ByRef pos2 As Double() _
) As Short
Visual C++
public:
virtual short Nutate(
	double tjd, 
	NutationDirection fn, 
	array<double>^ pos, 
	array<double>^% pos2
) sealed

Parameters

tjd
Type: System..::..Double
TDB julian date of epoch.
fn
Type: ASCOM.Astrometry..::..NutationDirection
Flag determining 'direction' of transformation;
    fn  = 0 transformation applied, mean to true.
    fn != 0 inverse transformation applied, true to mean.
pos
Type: array<System..::..Double>[]()[][]
Position vector, geocentric equatorial rectangular coordinates, referred to mean equator and equinox of epoch.
pos2
Type: array<System..::..Double>[]()[][]%
OUT: Position vector, geocentric equatorial rectangular coordinates, referred to true equator and equinox of epoch.

Return Value

0...Everything OK.

Remarks

Inverse transformation may be applied by setting flag 'fn'.

See Also